Subject: Re: Help: Kernel Patching for a 6400
sa@space.itacs.to
Date: Sat May 20 2000 - 12:04:26 MDT
On Sat, May 20, 2000 at 12:50:58AM -0700, Brandon Murakami wrote:
> Hi, I am new to Linux. I like the Linux kernal very much; it's much
> better than Mac OS 9 or Windows 98. However, I hate most Linux
> software. Furthermore, I'm forced to use Linux (or some kind of
> Unix) because I'm a physicist. I would love to try turning my 6400
> into a Linux machine with MOL. That would seeming solve all my
> problems.
>
> But (always a but with Unix), I don't know how to go about patching
> the Linux kernel. I'm capable of reading and executing the
> /usr/doc/mol-0.9.38/Kernel_Patches/PATCHING file verbatim, but I
> don't understand some of the phrases. I will quote the part that I
> have trouble with:
>
> *1. Look for the patch of your favorite kernel. If it is missing,
> * then there is a fair chance one of the supplied patches
> * will apply anyway.
> *
> * In the following, it will be assumed X is the file name
> * of the kernel patch (e.g. 'mol-kernel-pmac-stable.patch').
> * It is also assumed that the directory of the kernel source
> * is /usr/src/linux.
>
> "Favorite-kernel"--I assume "favorite" means the kernel that I'm
> using, which is the one that came with the LinuxPPC 2000 CD, version
> 2.2.15pre3. There is no patch with that name, so I chose the nicest
> sounding name, mol-kernel-pmac-stable.patch. I then attempted step 2.
>
> *2. The following sequence will test (without actually doing
> * anything) if the patch applies:
> *
> * cd Doc/Kernel_Patches
> * patch --dry-run -d /usr/src/linux -p0 < X
>
> So I type in:
>
> >patch --dry-run -d /usr/src/linux -p0 < mol-kernel-pmac-stable.patch
>
> And I get a message telling me the patch won't work:
>
> :Hunk #2 succeeded at 144 (offset 4 lines).
> :Hunk #3 succeeded at 556 (offset 14 lines).
> :Hunk #4 succeeded at 576 (offset 4 lines).
> :Hunk #5 succeeded at 665 (offset 14 lines).
> :patch: **** malformed patch at line 85: li r20,MSR_KERNEL
>
> So, I read the section in PATCHING called "What to when the patch did
> not apply". And I cannot get past step 1 because of the cryptic
> language:
>
> *1. If there was only a few hunks that was rejected, then the
> * simplest thing is to examine the rejected patch
> * (e.g. head.S.rej) and apply it manually (in principal,
> * lines with a leading `+` should be inserted and lines
> * with a leading `-` deleted).
>
> Finally, here are my questions. What does this mean? What is
> head.S.rej? What does it mean to "apply it manually"? And what's
> this + and - business? Or did I go wrong at some earlier step?
>
> Please help sell this Macintosh user on the virtues of Linux.
>
> Brandon
>
Hi, I believe there was a bug in older mols' patches, If you upgrade to
mol-0.9.41, the patches should apply with no problem. If you still want
to know what the - +'s are, just examine a patch, or read the patch man
page It's pretty self explanitory.
HTH,
sa
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